{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1KB42-ZW98","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1KB42-ZW98","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1KB42-ZW98","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1KB42-ZW98","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 24 VDC coil, screw-type terminals, 4 kW at 690 V, IP20 front and terminal protection, 3RT1015-1KB42-ZW98.","salesMarkdown":"The 24 VDC coil pulls in at 0.7x rated voltage (about 16.8 V) and drops out below that threshold, with a holding power of 2.3 W DC — a clean, low-hold design that keeps the panel cool in dense DIN-rail layouts. Screw-type terminals on the main circuit accept 2x (0.5... 1.5 mm²) solid or 2x (0.75... 2.5 mm²) stranded, max 2x (0.75... 4 mm²), so it lands comfortably on standard motor-circuit wiring without needing ferrule adapters. ## Duty ratings and coordination AC-3 switching at 400 V delivers 3 kW (the typical motor-starting duty), while AC-4 at the same voltage handles 6.5 A for reversing or inching applications where the contacts break full-load current. For resistive loads (AC-1), the contactor is rated 10 A at 24 V and 6 A at 230 V. Type 2 coordination requires a 20 A gL/gG fuse; Type 1 allows a 35 A gL/gG fuse — the higher fuse rating sacrifices the contactor in a fault but keeps the upstream breaker smaller. Pollution degree 3 (conductive pollution) means this contactor is suited for industrial enclosures where some dust and condensation are present, not for clean-room or sealed environments. The 72 mm depth leaves clearance for wiring ducts and front-panel doors.","metaTitle":"Siemens 3RT1015-1KB42-ZW98 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens 3RT1015-1KB42-ZW98 SIRIUS power contactor, size S00, 24 VDC coil, screw terminals, IP20, 4 kW at 690 V. Current lifecycle. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"57.5 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.25","Size of contactor":"S00","Product brand name":"SIRIUS","Degree of pollution":"3","Product designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"3.5 kW","at 690 V rated value":"4 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 A","Design of the surge suppressor":"with varistor","Closing power of magnet coil at DC":"2.3 W","Holding power of magnet coil at DC":"2.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","Number of NC contacts for main contacts":"0","Number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"18 A","Type of voltage of the control supply voltage":"DC","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=135078&mlfb=3RT1015-1KB42-ZW98","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1KB42-ZW98/alternatives.json"},"ai":{"faq":[{"question":"What wire sizes does the 3RT1015-1KB42-ZW98 accept?","answer":"The screw terminals accept 2x (0.5... 1.5 mm²) solid, 2x (0.75... 2.5 mm²) stranded, and max 2x (0.75... 4 mm²) stranded. AWG equivalents are 2x (20... 16), 2x (18... 14), and 1x 12 for the main contacts."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1KB42-ZW98","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RT1015-1KB42-ZW98 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}